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| author |   Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-10-24 13:31:34 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-10-25 16:54:37 +0900 |
| commit | 81eb8d6e2869b119d4a7b8c02091c3779733a3ac (patch) | |
| tree | cdff776596fa79bfc9c2f2baf7aa59470dc29aec /fs/f2fs/segment.c | |
| parent | f2fs: use bool for booleans (diff) | |
| download | linux-dev-81eb8d6e2869b119d4a7b8c02091c3779733a3ac.tar.xz linux-dev-81eb8d6e2869b119d4a7b8c02091c3779733a3ac.zip | |
f2fs: reclaim prefree segments periodically
Previously, f2fs postpones reclaiming prefree segments into free segments
as much as possible.
However, if user writes and deletes a bunch of data without any sync or fsync
calls, some flash storages can suffer from garbage collections.
So, this patch adds the reclaiming codes to f2fs_write_node_pages and background
GC thread.
If there are a lot of prefree segments, let's do checkpoint so that f2fs
submits discard commands for the prefree regions to the flash storage.
Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/segment.c')
| -rw-r--r-- | fs/f2fs/segment.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 177a33b16b2c..62b52f2f293a 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -1645,6 +1645,7 @@ int build_segment_manager(struct f2fs_sb_info *sbi) sm_info->ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); sm_info->main_segments = le32_to_cpu(raw_super->segment_count_main); sm_info->ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); + sm_info->rec_prefree_segments = DEF_RECLAIM_PREFREE_SEGMENTS; err = build_sit_info(sbi); if (err) |